Write a menu driven program to display a menu of options and depending upon the user’s choice execute the associated command.

<span style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-bidi-font-family: Mangal; mso-bidi-language: HI; mso-fareast-font-family: "Arial Unicode MS"; mso-fareast-language: HI; mso-font-kerning: .5pt;">until \[ “$selection” -eq “0” \]; do echo ” Program Menu “ echo ” 1. Display Free disk space “ echo ” 2. Display Free memory “ echo ” 3. Disk Usage “ echo ” 4. List Your Processes “ echo ” 5. Who is connected to the system? “ echo ” 0. Exit “ read selection case $selection in 1 ) df ;; 2 ) free ;; 3 ) du ;; 4 ) ps ;; 5 ) who ;; 0 ) exit ;; \* ) echo ” Please enter correct choice “ esac done</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-font-family: Mangal; mso-bidi-language: HI; mso-fareast-font-family: "Arial Unicode MS"; mso-fareast-language: HI; mso-font-kerning: .5pt;"> </span>